Results 81 to 90 of about 33,900 (190)
Energetic particle parallel diffusion in a cascading wave turbulence in the foreshock region [PDF]
Nonlinear Processes in Geophysics, 2007 We study parallel (field-aligned) diffusion of energetic particles in the upstream of the bow shock with test particle simulations. We assume parallel shock geometry of the bow shock, and that MHD wave turbulence convected by the solar wind toward the ...
F. Otsuka, Y. Omura, O. Verkhoglyadova
doaj
Theoretical and Applied Mechanics LettersTransformer has achieved remarkable results in various fields, including its application in modeling dynamic systems governed by partial differential equations.
Huiyu Yang +3 more
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FluidsA combination of lattice Boltzmann method (LBM)-based computations and Lagrangian particle tracking simulations is presented to study the dispersion and clustering of inertial particles in a forced homogeneous and isotropic turbulent flow and to analyze ...
Hamid Bellache +2 more
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AtmosphereLarge-eddy simulation (LES) models are sensitive to numerical discretization because of the large fraction of resolved turbulent energy (>80%) and the strong non-linear interactions between resolved-scale fields with the turbulence subgrid scale (SGS ...
Jonas Banhos, Georgios Matheou
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Fluctuation-induced forces in homogeneous isotropic turbulence
, 2018 Understanding force generation in non-equilibrium systems is a significant challenge in statistical physics. We uncover a surprising fluctuation-induced force between two plates immersed in homogeneous isotropic turbulence using Direct Numerical Simulation. The force is a non-monotonic function of plate separation.
Spandan, Vamsi +3 more
openaire +2 more sources
Psuedospectral calculation of shock turbulence interactions [PDF]
A Chebyshev-Fourier discretization with shock fitting is used to solve the unsteady Euler equations. The method is applied to shock interactions with plane waves and with a simple model of homogeneous isotropic turbulence.
Hussaini, M. Y. +2 more
core +1 more source
Mass invariant in a compressible turbulent medium
Physical Review ResearchPredicting the measurable statistical properties of density fluctuations in a supersonic compressible turbulent flow is a major challenge in physics.
Pierre Dumond +3 more
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Lyapunov Analysis of Homogeneous Isotropic Turbulence
, 2009 The present work studies the isotropic and homogeneous turbulence for incompressible fluids through a specific Lyapunov analysis, assuming that the turbulence is due to the bifurcations associated to the velocity field. The analysis consists in the study of the mechanism of the energy cascade from large to small scales through the Lyapunov analysis of ...
openaire +2 more sources
Orifice versus Converging-Nozzle Grid Turbulence: A Wavelet Perspective
Applied SciencesGrids such as perforated plates are of fundamental importance in flow turbulence study and are commonly utilised to promote mixing. An orificed perforated plate (OPP) and its reversed counterpart, the converging-nozzle perforated plate (CNPP), were ...
Ankit Raj, David S.-K. Ting, Yang Yang
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Simulation and modeling of homogeneous, compressed turbulence [PDF]
Low Reynolds number homogeneous turbulence undergoing low Mach number isotropic and one-dimensional compression was simulated by numerically solving the Navier-Stokes equations.
Chapman, D. R. +2 more
core +1 more source